从C#中的幅值和相位创建复数

using System;
using System.Numerics;

class Program
{
    static void Main()
    {
        double amplitude = 2.5; // 幅值
        double phase = Math.PI / 4; // 相位（以弧度表示）

        Complex complexNumber = Complex.FromPolarCoordinates(amplitude, phase);

        Console.WriteLine("复数的实部: " + complexNumber.Real);
        Console.WriteLine("复数的虚部: " + complexNumber.Imaginary);
        Console.WriteLine("复数的模长: " + complexNumber.Magnitude);
        Console.WriteLine("复数的相位（弧度）: " + complexNumber.Phase);
    }
}

复数的实部: 1.76776695296637
复数的虚部: 1.76776695296637
复数的模长: 2.5
复数的相位（弧度）: 0.785398163397448